2012/07/31 by EDELWEISS Collaboration, E. Armengaud, C. Augier +59 · 1 citation
Physics and Astronomy · #Astrophysics #Cosmology #Dark Matter and Cosmic Phenomena #Dark matter #Detector #Elastic scattering #Nuclear physics #Nucleon #Optics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Scattering #Semiconductor detector #WIMP #Weakly interacting massive particles #astro-ph.CO #hep-ex #physics.ins-det
paper · pdf · doi:10.1103/physrevd.86.051701
published as Phys. Rev. D 86, 051701(R) (2012) · PRD rapid communication accepted
arxiv created 2012/09/05 · openalex publication_date 2012/09/06 · arxiv updated 2012/09/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on a search for low-energy (E<20 keV) WIMP-induced nuclear recoils using data collected in 2009--2010 by EDELWEISS from four germanium detectors equipped with thermal sensors and an electrode design (ID) which allows to efficiently reject several sources of background. The data indicate no evidence for an exponential distribution of low-energy nuclear recoils that could be attributed to WIMP elastic scattering after an exposure of 113 kg\ifmmode⋅\else\textperiodcentered\fid. For weakly interacting massive particles (WIMPs) of mass 10 GeV, the observation of one event in the WIMP search region results in a 90% C.L. limit of 1.0\ifmmode×\else\texttimes\fi10^\ensuremath-5 pb on the spin-independent WIMP-nucleon scattering cross-section, which constrains the parameter space associated with the findings reported by the CoGeNT, DAMA and CRESST experiments.